bbown



(No Model.)

3 Sheets-Sheet 1. P. R. BROWN.

ORE SEPARATOR.

Patented Sept. 16, 1884. V

WITNESSES INVENTOR BY WM ATTORNEY N. Prrifis FholuLIthogmpher.Washinflion. n. c,

(No Model.) 3 Sheets-Sheet 2.

P. R. BROWN.

ORE SEPARATOR.

No 305.284. Patented Sept. 16, 1884.

INVENTOR BY MM WITNESSES ATTORNEY 3 Sheets-Sheet 3.

F. R. BROWN.

ORE SEPARATOR.

(No Model.)

Patented Sept. 16, 1884.

INVENTOR BY W WITNESSES ATTORNEY UNITED STATES.

ATENT Fries.

FRANCIS R. BROVN, BOULDER, COLORADO.

OROE-SEPARATO R.

SPECIFICATION forming part of Letters Patent No. 305,284, datedSeptember 16, 1884.

Application filed April 19, 1884.

To all whom it may'concern:

Be it known that I, FRANGIs R. BROWN, a citizen of the United States,residing at Boulder, in the county of Boulder and State of 0010- rado,have invented certain new and useful Improvements in Ore-Separators, ofwhich the following is a specification, reference being had therein tothe accompanying drawings.

This invention relates to ore-concentrators; and it consists partly incertain improvements in a hydraulic separator, which first receives thecomminuted ore or stock; partly in the combination of this hydraulicseparator with a series of amalgamating diaphragms, each of which is feddirectly therefrom; partly in certain improvements in the pan and itshub, to which the ore passes from each diaphragm, and partly'in thegeneral construction and combination of the parts constituting themachine as a whole, and to divers details, all as hereinafter moreparticularly set forth and claimed.

In the accompanying drawings, Figure 1 represents a vertical sectionthrough the machine as a whole. Fig. 2 represents a horizontal sectionon the line a; a: of Fig. 1. Fig. 3 represents a plan view of amodification of the panshaking devices. Fig. 4 represents a plan view ofanother modification ofthe' same. Fig.

. draulic separator.

' of said separator.

5 represents a detail sectional view of one of the mineral-pockets ofthe pans. Fig. 6 representsa horizontal section through the by- Fig. 7represents an enlarged perspective detail view of the hydraulicseparator. Fig. 8 represents an enlarged vertical section through thesame on the lineZ, passing through the partition and the center Fig. 9represents an enlarged detail vertical section of thehub of one of theconcentrator-pans. Fig. 10 represents an enlarged horizontal sectionthrough one of said pans on a plane a little below the diaphragm.

In said drawings, A designates the frame of the machine, provided withnecessary sills, uprights, and cross-bars, which need not be moreparticularly described. B designates the motor which drives said machineby means of a belt running to a horizoutal shaft, 0, which is connectedby bevel- (No model.)

Figs. 1, 6, 7 and 8) attached to and supported by the upper part offrame A, and provided with an outerand an inner wall arrangedconcentrically around shaft D, which passes through an opening in thebottom 0 thereof.

Below this bottom extend tapering thimbles F, which open at top into thebottom of the annular space between the walls of the separator, so thatthe said thimbles may receive stock therefrom. This annular space isdivided by a vertical partition, F, which extends across it and from thetop of the separator to said bottom 6. The stock is supplied through apipe, E, which discharges against the side of said partition, as shownin Fig. 7. The stream of stock is deflected by this partition and causedto circle around the separator, following the course of the arrows inFig. 7, and passing over the thimbles as it does so. \Vhen the streamreaches the opposite side of the partition, it again turns uponitself.\Vater is supplied by pipes G, arranged above the separator, andperforated discharge-pipes G, extending vertically downward from saidpipes G into said thimbles F, respectively. The water thus suppliedcirculates around the interior of each thimble, thoroughly washing it,and stirring the stock therein, and then passes upwardinto the remainderof the separator. The heavier parts of the stock thus stirred graduallysettle to the bottoms of the thimbles and the lighter part-s take theirplace above them. Each thirnble is provided with a cock, f, in itsbottom, for allowing the former to escape, and another cock, f, at apoint in the side, which will allow the lighter parts to be drawn off atwill. By the above contrivances the ores of different gravity areseparated, and either the lighter or the heavier may be drawn off atwill. Both of said cocks open communication through their respectivebranch pipes with a pipe, H, which feeds one of the fouramalgamating-diaphragms I. Each thimble F supplies one of saiddiaphragms Ice ,pan, forming the journal of said pan.

through one of said pipes H. Each dia ph ragm is mounted on and rotateswith a vertical shaft, J, and under each is an oscillating pan, K. Oneach pan is mounted a circular feeding-wall, L, which surrounds thelower edge of the diaphragm I, and has an inner flange, Z, turned up toreceive and temporarily sustain the stock before it descends therefromto the pan. As the diaphragm rotates while the pan K and wall Loscillate, the stock will be shaken and stirred about in passing fromthe one to the other. This facilitates the pro- "cess of amalgamation.The shaft J has its lower" bearing in a hub, M, formed with said pan, orattached thereto, as shown in Fig. 9, and the said hub is extendeddownward below said This journal turns in a bearing formed in a baseplate or support, N, attached to the frame.

The diaphragm I is provided on its upper face with copper ribs 1, whichare coated with quicksilver, and as the feed-tube H discharges stock ator near the center of the diaphragm the distribution of it over saidribs is very thorough and complete. After this amalgamation the stockpasses to the annular reeeptacle or trough formed by the feeding-wall Land its flange Z, and there undergoes further amalgamation with themercury in the bottom of said trough. The stock passes from this troughover the flange or inner rim, Z, thereof down to the concentrating-panK. In this pan it is acted on by a spiral copper flange, O, which issecured to the under side of the convex diaphragm I. As both thediaphragm and spiral flange are fully described in my Patent No.291,872, they need not be further dwelt upon here. The bottom of the panis also convex, and is provided on opposite sides with pockets 1 (seeFigs. 5 and 10,) in which the heavier portions of the ores graduallysettle. The lighter portions are worked by the action of said spiralflange to the center of the pan, and enter the interior of the lowerpart, M, of the hub M, said lower part, M, being made tubular in orderthat it may serve as a discharge-outlet as well as a journal. Thishollow part of the hub has openings 2 in its sides, whereby it receivesstock from the pan,

' and its lower end is open to allow the stock to pass therefrom. Thisoutlet discharges on an incline, Q, which conducts the material thusdelivered to a waste-pipe, R. There is one of these inclines under eachconcentrating-pan,

5 and they all converge to said waste-pipe.

The oscillating motion of the concentrating-pans K is preferablyproduced, as in Fig. 2, by two bars, T, which are actuated by cams S 011vertical shaft D. These bars have racks 15 formed on their sides, andeach one of trating-pan to their former position as soon as said arm isfreed from the tappet.

In Fig. 4: no retracting-springs are shown but I employ connecting-rodsW, which are hinged to the concentrating-pans, respectively, and areconnected by encircling rings to cams X on shaft D.

The rotary motion of the shafts J is derived from belts 3 extending frompulleys Y on said shafts to pulleys Z on shaft D, respectively.

The rotation of the diaphragm, the oscillation of the concentrating-pan,the complicated motions of the stock and water, and the numerousobstacles they meet with, all combine to cause a Very great amount offriction, and electricity is generated thereby to such a degree as to bepractically serviceable in aiding the separation of the different oresfrom one another by magnetization, due to the action of currents ofelectricity generated in the metallic parts of the separator by thefriction of the stock against them. At

times, however, the electricity seems to be in excess, and certainimproper and injurious accumulations of ore are attributed to it. Toremedy this I connect ground-wires z to the pans, and thus lead off thesuperfluous electricity.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination of a hydraulic ore-separator provided with a seriesof thimbles or tubes with a series of diaphragms and concentrating-panscorresponding in number to said thimbles, and the feed-pipes connectingsaid thimbles with said pans, substantially as set forth.

2. A hydraulic ore-separator having an annular interior, formed as oneapartment or passage, and provided with a single partition extendingacross it at one point from side to side and from top to bottom of saidspace, substantially as set forth.

3. A hydraulicoreseparator having a continuous annular interior space,and provided with a partition extending across the said space inproximity to the inlet for stock, in combination with devices fordischarging water into the lower part of said compartment, the stockbeing directed against one side of said partition, and compelled therebyto'make the circuit of the annular space to the other side of' saidpartition, substantially In testimony whereof I affixiny signature inasset forth. presenceof two witnesses.

4. Ahydraulio ore-separator having an an nnlar interior space providedwith a down- FRANCIS R. BROWN. w 5 wardly-extending series of thimbles0r tubes in combination with perforated water-tubes, Witnesses: whichextend down into these thimbles, 1'e F. E. STOREY, spectively, anddischarge the water therein. W. A. FARNSWORTH.

